[issue33671] Efficient zero-copy for shutil.copy* functions (Linux, OSX and Win)

[Giampaolo Rodola']

Giampaolo Rodola' <g.rodola at gmail.com> added the comment:

PR: https://github.com/python/cpython/pull/7160

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33671>
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